Calculate the cost of missed calls
Use your own call volume, missed-call rate, average job value, and close rate to estimate lost jobs and lost revenue per month and per year.
Estimate lost revenue from missed calls
Enter your own call volume, missed-call rate, average job value, and close rate. Every result below is an estimate based on those inputs.
Estimates based on the numbers you enter — your actual missed-call rate and close rate will vary.
Want help capturing this value?
If missed calls are costing you jobs, an AI receptionist that answers every call, answers common questions, and helps book the next step could help you capture work you are already earning inquiries for. BookAIStudio offers an AI audit to map where calls, follow-up, and booking break down in your business and what to fix first.
About this tool
For many service businesses, the phone is still where the best work arrives: a homeowner with a leak, a driver after an accident, a patient in pain, or a client who needs help today and will call the next name on the list if no one answers. This AI Receptionist ROI Calculator turns that risk into numbers you can reason about, using only figures you supply. Enter how many calls you get in a month, what share go unanswered while you are on a job, in a treatment room, or closed for the night, what an average job is worth, and how often an answered call becomes a booked job. The calculator estimates how many calls are missed, how many of those could plausibly have become jobs, and what that represents in lost revenue each month and each year. It does not assume every missed call was a sale — your close rate keeps the estimate grounded. Use the result to decide, with clear eyes, whether after-hours cover, a callback system, or an AI receptionist that answers and helps book is worth testing for your business, and what it would need to recover to pay for itself.
Frequently asked questions
How is lost revenue estimated?
Missed calls are calls per month multiplied by your missed percentage. Lost jobs are those missed calls multiplied by your close rate, on the reasoning that not every caller would have booked. Lost revenue is lost jobs multiplied by your average job value, shown per month and multiplied by twelve for the yearly estimate.
How do I find my missed-call rate?
Check your phone system, carrier app, or call log for calls that rang out, went to voicemail, or arrived outside opening hours over the last month, then divide missed calls by total calls. If you cannot measure it yet, run the calculator with a low and a high guess to see a range rather than relying on a single point estimate.
Does every missed call mean a lost job?
No, and the calculator is built that way on purpose. Some missed calls are spam, existing customers who will call back, or enquiries that would not have converted. Applying your close rate to missed calls is a conservative way to estimate only the share that plausibly would have become work if someone had answered.
What does an AI receptionist actually do on a call?
Depending on how it is set up, it can answer when you cannot, greet the caller in your business name, answer common questions about services and hours, collect the caller details and the reason for the call, and help book or request a callback. This calculator only estimates the value of calls currently missed — whether a specific setup fits your business needs a review of your call types and booking process.
Are these estimates a guarantee of what I will recover?
No. Estimates are based on the numbers you enter, and your actual missed-call rate and close rate will vary by week, season, and call mix. Answering more calls also does not guarantee those callers book with you. Treat the result as a planning figure for deciding whether better call cover is worth exploring.